SOURCE

var oul=$("zd").getElementsByTagName("ul")[0],
            oli=oul.getElementsByTagName("li"),
            timers=null,
            timer=null,
            i=0,
            oliW=oli[0].offsetWidth;
            oul.style.width=oli.length*oliW+"px";
            function $(id){
                 return document.getElementById(id);
            }
            function getClass(obj,name){
                if(obj.currentStyle){
                    return obj.currentStyle[name]
                }else{
                     return getComputedStyle(obj,false)[name]
                }
            }
            function Stratmove(obj,json,funEnd,callback){
               clearInterval(obj.timer);
               obj.timer=setInterval(function(){
                   for(var attr in json){
                       var bStop=true,
                           cuur=parseFloat(getClass(obj,attr)),
                           speed=0;
                       if(attr=="opacity"){
                          cuur=Math.round(parseFloat(getClass(obj,attr))*100);
                       }else{
                          cuur=parseFloat(getClass(obj,attr));
                       }
                       speed=(json[attr]-cuur)/8;
                       speed=speed>0?Math.ceil(speed):Math.floor(speed);
                       if(cuur!=json[attr]){
                            bStop=false;
                       }
                       if(attr=="opacity"){
                            obj.style["opacity"]=(cuur+speed)/100;
                                   obj.style["filter"]="alpha(opacity="+cuur+speed+")";

                       }else{
                            obj.style[attr]=Math.round(cuur+speed)+"px";
                       }
                       if(bStop){
                          clearInterval(obj.timer);
												  callback();
                       }
                       if(funEnd)funEnd();
                   }
               },30)
            }
            var arr=[];
						timers=setInterval(function(){
						    	Stratmove(oul,{"left":-oliW},null,calls); 
							                   
               },3000);		
			   		function calls(){
								arr.push(oli[0]);
								oul.removeChild(oli[0]);
								oul.appendChild(arr[0]);
								arr.splice(0,arr.length);
								oul.style.left=0;
					  }

<div id="zd">
            <ul>
							<li > <img  src="http://img.yzcdn.cn/upload_files/2015/08/06/FpSll7_ng3DmE7JfZT-YsQozxXB1.jpg%21730x0.jpg" style="width:100%; height:100%"/></li>
                <li > <img src="https://ss1.bdstatic.com/70cFvXSh_Q1YnxGkpoWK1HF6hhy/it/u=2213111953,2032525380&fm=23&gp=0.jpg" style="width:100%; height:100%"></li>
                <li > <img  src ="http://static.runoob.com/images/demo/demo2.jpg" style="width:100%; height:100%"></li>
            </ul>
        </div>

#zd{
              margin:0;
              padding:0;
              width: 600px;
              height: 200px;
              overflow: hidden;
               position: relative;
                 margin:0 auto;
           }
           ul{
               position: absolute;
               left:0;
               top:0;
           }
           li{
              width: 600px;
              height: 300px;
              float: left; 
           }
.current {
   float: left;
  padding:2px;
}
h1{
  text-align:center;
}